Add 42/72 and 21/50
42/72 + 21/50 is 301/300.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
42/72 = 42 × 25/72 × 25 = 1050/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
21/50 = 21 × 36/50 × 36 = 756/1800 - Add the two like fractions:
1050/1800 + 756/1800 = 1050 + 756/1800 = 1806/1800 - 1806/1800 simplified gives 301/300
- So, 42/72 + 21/50 = 301/300
In mixed form: 11/300
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